I don't think the spoilers caught the fact that Capone is on Big Mom's ship (this was not my catch, other people had pointed this out I just made the larger image). I included other material from chapter 730 to remind people that Caesar had stolen from Big Mom.

For me it is the balance of everything and Oda's inclusion of History and Pop culture into this unique universe. Lore and mythos are a powerful tool in OP. Everything seems to adhere strictly to the laws of the OP universe. As someone who doesn't enjoy much fiction this is the most important point. When a rule has been established Oda sticks to it (water vs devil fruits). The world itself is interesting with North, South, East, and West Blue; the Grand Line; and the New World. Then you have tools like the Log Pose to help you navigate. The level of intricate detail adds to the believability.

Certain fruits seem stronger than others and at first we were lead to believe that someone made of sand, lava, or light would be invincible. But Haki is there to help balance it out so that no one person could be immune to damage.

Are you referring to the white, or the blue? I have been a little busy lately, but I can look into changing the white to an off-white or extend the blue to the whole page. You can also use night mode. It is the little lightbulb in the top right corner next to your messages.